Mayes, Susan. What's under the ground? / [book] - London : Usborne, 1989. - 24 p. : col. ill. ; 18 cm. - Usborne starting point science . - Usborne starting point science . Includes index. Explains how something is always happening under the ground. ISBN: 0746003579 (pbk.) 0746002726 1851233202 Subjects--Topical Terms: Underground areas Dewey Class. No.: 500.1 MAY